Extrusion for metallic frameworks



FIG. 1 is an end elevational view of an extrusion for metallic frameworks showing a first embodiment of my new design;

FIG. 2 is a fragmentary top right perspective view thereof;

FIG. 3 is a fragmentary bottom left perspective view thereof;

FIG. 4 is an end elevational view of an extrusion for metallic frameworks showing a second embodiment of my new design;

FIG. 5 is a fragmentary top right perspective view thereof; and

FIG. 6 is a fragmentary bottom left perspective view thereof. 

The ornamental design for an extrusion for metallic frameworks, as shown and described. 